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MC68HC08JB8AD

Freescale Semiconductor
Part Number MC68HC08JB8AD
Manufacturer Freescale Semiconductor
Description This addendum provides additional information
Published Jul 16, 2007
Detailed Description Freescale Semiconductor, Inc. Addendum HC908JB8AD/D Rev. 0, 4/2002 Addendum to MC68HC908JB8 Technical Data Freescale Se...
Datasheet PDF File MC68HC08JB8AD PDF File

MC68HC08JB8AD
MC68HC08JB8AD

Overview
Freescale Semiconductor, Inc.
Addendum HC908JB8AD/D Rev.
0, 4/2002 Addendum to MC68HC908JB8 Technical Data Freescale Semiconductor, Inc.
.
.
This addendum provides additional information to the MC68HC908JB8 Technical Data, Rev.
2 (Motorola document number MC68HC908JB8/D), MC68HC08JB8A The MC68HC08JB8A is the ROM part equivalent to the MC68HC908JB8.
The entire MC68HC908JB8 data book apply to this ROM device, with exceptions outlined in this addendum.
Table 1.
Summary of MC68HC08JB8A and MC68HC908JB8 Differences MC68HC08JB8A Memory ($DC00–$FBFF) User vectors ($FFF0–$FFFF) Registers at $FE08 and $FF09 8,192 bytes ROM 16 bytes ROM Not used; locations are reserved.
$FC00–$FDFF: Not used.
$FE10–$FFDF: Used for testing purposes only.
VDD level (5V logic) MC68HC908JB8 8,192 bytes FLASH 16 bytes FLASH FLASH related registers.
$FE08 — FLCR $FF09 — FLBPR Used for testing and FLASH programming/erasing.
VREG level (3.
3V logic) www.
DataSheet4U.
com Monitor ROM ($FC00–$FDFF and $FE10–$FFDF) OSC1 and OSC2 pins MCU Block Diagram Figure 1 shows the block diagram of the MC68HC08JB8A.
Memory Map The MC68HC08JB8A has 8,192 bytes of user ROM from $DC00 to $FBFF, and 16 bytes of user ROM vectors from $FFF0 to $FFFF.
On the MC68HC908JB8, these memory locations are FLASH memory.
Figure 2 shows the memory map of the MC68HC08JB8A.
For More Information On This Product, Go to: www.
freescale.
com www.
DataSheet4U.
com Freescale Semiconductor, Inc.
.
.
INTERNAL BUS M68HC08 CPU PTA7/KBA7 (3) PTA : PTA0/KBA0 (3) ARITHMETIC/LOGIC UNIT (ALU) KEYBOARD INTERRUPT MODULE DDRB PTB PTB7–PTB0 (3) DDRA HC908JB8AD/D CPU REGISTERS CONTROL AND STATUS REGISTERS — 64 BYTES TIMER INTERFACE MODULE USER ROM — 8,192 BYTES MONITOR ROM — 464 BYTES LOW VOLTAGE INHIBIT MODULE DDRD PTD USER ROM VECTORS — 16 BYTES DDRC PTC USER RAM — 256 BYTES BREAK MODULE PTC7–PTC0 (3) PTD7–PTD6 (4) PTD5–PTD2 (4) (5) PTD1–PTD0 (4) (6) PTE4/D– (3) (4) (5) (1) OSC1 OSCILLATOR POWER-ON RESET MODULE (1) OSC2 (1), (2) RST ...


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